Condensing apparatus.



R. N- EHRHART.

CDNDENSING APPARATUS.

APPLICATION. m znseyr. 243, ms.

Patented Nov. 12, 191

IN VENTOR- HIS ATTORNE YJ/N FACT:

UNITED. STATES PATENT OFFICE.

RAYMOND N. EHRHART, 0F EDGEWOOD PARK, PENNSYLVANIA, ASSIGNOR T0 WEST- INGHOUSE ELECTRIC 8c MANUFACTURING COMPANY, A CORPORATION OF. PENN- SYLVANIA.

CONDENSIN G APPARATUS.

Specification of Letters Patent.

Patented Nov. 12, 1918.

To all whom it may concern:

Be it known that I, RAYMOND N. Enn- HART, a citizen of the United States, and a resident of Edgewood Park, in the county of Allegheny and State of Pennsylvania, have made a new and useful Invention in Condensing Apparatus, of which the follow ing is a specification;

This invention relates to condensing apparatus, and has foran object to produce new and improved means for supporting the various parts of the apparatus.

In connection with surface condenser installations it is the usual practice to provide a circulating pump, a condensate pump, and an air pump. In ordinary practice each pump is complete in itself; that is, it is provided with a separate base, separate bearings and bearing brackets, and usually with a separate driving unit.

A further object of this invention is to produce an arrangement in which all of the pumps are of the rotary type and are capable of having their rotating elements mounted on a common shaft, thereby reducing the number of bearings required to a minimum and allowing all of the pumps to be driven by one driving unit.

A further object is to produce an arrangement of the pumps which will be standard and yet will allow considerable flexibility in the location of the piping connections aside from those to the condenser.

A further object is to produce an arrangement which will eliminate the heavy bases ordinarily required for the pumps.

A further object is to utilize waste space beneath the condenser by-installing the pumps in this space, and to reduce the length of connections between the pumps and the condenser to a minimum.

These and other objects which Will be made apparent throughout the further description, are attained by means of apparatus embodying the features herein described and illustrated inthe drawing accompanying and forming a part hereof. In the drawing I have illustrated a condenser equipped with apparatus embodying my invention, the condenser being shown. in section.

-- The illustrated embodiment of-my invention includes a condenser 5, supported by a ier 6 and a beam 7. 'Ihe beam- 7 is in turn supported by two otherpiers 8 .on1y one of which is shown. Beneath the condenser and suspended from it is a rotary circulating pump 9, connected directly to the cooling water inlet 10 of the condenser. The discharge port of this pump is provided with-a flange 11, which is bolted or otherwise secured to the water box 12 of the condenser, and supports the pump from the condenser. Adjacent to the circulating pump and partly supported by it is a rotary air pump 13, having one side wall in common.with the circulating pump 9, and having its rotating element on the same shaft as that of the circulating pump. An air offtake pipe 14 connects the air pump with the condenser and also forms a support for the pump. A condensate pump 16 is located adjacent to the air pump 13 but is separated from it by a distance piece 15. The type of air pump illustrated must be accessible on one side, in order that certain adjustments maybe made, and the distance piece is therefore employed to provide the necessary space for making the adjustment. The distance piece furnishes support on one side for the condensate pump and a condensate pipe 17, which connects the pump with the condensate outlet of the condenser, serves as a support on the other side of the pump. The rotating element of this pump is also mounted on the shaft c01nm0n to the other two pumps and this shaft is journaled in bearmgs 18 and 19,-whicl1 are also supported by or suspended from the condenser. The bearing 18 is located between pumps 13 and 16 and'is shown supported by the end wall of the pump.18. The bearing 19 is shown supported by the outer end wall of the pump 9. A turbine 20 is shown coupled to the shaft of the pumps by means of a coupling 21. This turbine is located at one end of the suspended pumps, and is provided with its own base and foundation;

As the pumps are supported entirely by the condenser it is evident that a considerable saving is accomplished by eliminating the heavy bases and foundations which 'would otherwise be required for them. Furthermore the pumps are definitely located. making the whole apparatus a standard unit. However the connections between, the pumps and other. auxiliary apparatus can be changed from-one side to the other without affecting the general arrangement of the ap paratus.

By providing a common shaft for all three pumps only two bearings are required in place of the six ordinarily employed. This results in a considerable saving in both the initial and maintenance costs. The castings for'the pumps are also to be simplified by uniting the three machines together as shown, and the weight of these castings is therefore reduced, not only because of this simplification, but also because they support .no' weight other than their own.

In order to get proper submergence of the condensate pump, it is necessary to elevate the condenser above this pump. As a result a large amount'of space is ordinarily left under the condenser as waste space.

In my invention this waste'space is not only utilized port, an air ofl'take port, and a port through which cooling Water delivered, supports for mountmg sald condenser 1n an elevated position, a rotary condensate pump located beneath the condenser, a connection between the intake of said pump and the condensate discharge port, a rotary air pump, a connec-' tion between said air olftake port and the intake of the air pump, a rotary circulating pump, a connection between said pump an the cooling water delivery port of said condenser, the casings of said pump rigidly secured together and supported by said connections, a shaft common to themtor elements of said pumps and bearings for said shaft supported by casings of said pumps.

.2. In combination with a surface condenser provided with a condensate discharge port, an air offtake port, and a condensing water delivery port, supports for mounting the condenser in an elevated position, a con- "densate pump, an air pump and a circulating pump, the casings of said pumps being sebeing gether so as to form' a unitary structure, a-

separate connection between each pump and the appropriate port of said condenser, by

means of which said pumps aresuspended from the condenser, and a common operating shaft for said pumps.

4. In combination with a condenser, supports for mounting the condenser in an elevated position, condenser auxiliary pumps having their casings secured together in a unitary structure, connections between said pumps and appropriate ports of the condenser by means of which saidpumps are suspended from the condenser, and a common operating shaft for all of said pumps. I

5. In combination with a condenser, sup ports for mounting the condenser in an elevated position, a circulating pump located beneath the condenser, a rotary airpump located beneath the condenser and secured tosaid circulating pump and having a casing wall in common therewith, a condensate pump located beneath the condenser secured to the casing of the air pump but spaced therefrom, a shaft common to the rotor elements of all said pumps, a bearing forsaid shaftanounted on the casing of the circulating pump, a bearing for said shaft mountedbetween the air pump and the condensate pump, and connections between each of said pumps and appropriate ports of said condenser, whereby said pumps' are suspended from the condenser.

- In testimony whereof, I have hereunto subscribed my name this 22 day of September, 1916. v

RAYMOND N. ,EHRHART. 

